US1621051A

US1621051A - Steering-wheel lock

Info

Publication number: US1621051A
Application number: US80595A
Authority: US
Inventors: Hana F Ayoub
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-01-11
Filing date: 1926-01-11
Publication date: 1927-03-15
Anticipated expiration: 1944-03-15

Description

y 1,621,051 March 15, 1927- yH, F. AYOUB STEERING WHEEL LOCK Filed Jamll, 1926 l Patented Mar. 15, 1927.

1 Hannan. Aironet-.oran raso, TEXAS.

sTEEninG-WHEEL 1.00K.

. Application filedv January 11,1325 semina. 80,595.

vide 'a look having a loclebolt which may be set by` pressure whenV a keyis in locking position` andI is adapted.. to e' move automati-y callyv to a ,positive releasing position- IWhen thekey is 'turnedto release position,pthereby preventing sticking ofthe belt and ensuring its positive retraction' to a fulldegree on a manipulation of' the key toproper position.

Still another objectA ofthe invention s is to provide a lock which, While lof simple and inexpensive construction, is proof against access to its Workingmechanism.andits being tampered with to render it inoperative Within anyv reasonable period of time, thus ensuring all reasonable safety against theft oi`- the vehicle. i l

In lthe vaccomp anying drawing showing,I the use of'my invention, llfor. example, i'nry lockeL ing.. the steering., rod 'oiv an automobile from e movement;- Y

Figure 1f is a horizontal cross-section through the steeringv column and related parts of an automobilesteering.gearggshovvr ingthelock applied' thereto.. e y

Figure 2 1s an end elevation of, thelock, partly, in section.

Figure `3 is asection, ontlie line 3,-3 of Figurel. l

Figure 4 is a fragmentary view: similar to FigureI l, showing the lock in seotionand the boltprojectedi 3 A Figure 5 is a view similar to Figure4, sliowingthebolt retracted. y y; 1

Figure 6 is afseetion on ythe lineGX-of Fi ure/4.` p

Figurev 7 isf aview of the llangedsdisl;

Figure 8 is. a .:vievvV of thelatch.

R erring, now morepart'lcularly toy the drawing; 1 vdesignates my improved. lock,

Which-comprises af casingf- 2, having at one side, asemifoi'rcnlar portion 3 cooperating Witha similarly shapedclampzmember 4 to form a circular shackle, `whereby the look is` adapted to lbe arranged,tor embracejan y automobile,steeringcolumn orthezlikee: @he

parts B`and14l are vprovided With bosses 5f andi 6, the bosses 5 lbeing 'ormedjwvith threaded passages#1 and the bosses jvith,y threaded' sockets 8-to receive threaded fastening; keys 60 orplugs 9. These keys or plugs 9'ina`y`b`e initially in the form of headed `screvvsfthe l headsof which aro'cut oli flushvith the'outer, faces of the bosses 5 through which 'theip'assages 7 open. a'ftervthe parts are fastenedfto-` 65 gether, leaving' the screws'devo'id. fof 'siir'lfaces which may be V gripped for engaged :to permitf y l removal oiithe'screws. The'part l4Lmaye7 tl'ijerefore,V be'made initially, Separatevfi'oin the lock casing-,to permit theflockf to`rr lo`e'70 l applied te .an automobile Steering Colu'mnA.

or the like Without removalv ofthe steering, When the headsofjthe screws are` wheel; y cut ofix the screws cannotfbe removedf with:y

out difliculty or' attracting attention in *case 75 an attempt is made to surreptit'iously remove them, thus givingamplefrneasure offprotec.- .f

tion against the possibleunauthorizedremoval of .the lock in; `this manner. Any

other safe ,mode of, permanently. connecting. 8O. 'i i theparts 3- 'and' 4f` after: application :ofthe loekifor use-may, hoiveverbe employed, x

The rclamp 4 is provided at amedialpointwith a projection. 10 extending into the shackle opening 11.A K adapted for .cooperation With aslidingloek bltf 12 yto hold the lockcentened on thesteelfing'column against displacement. Inprac: tice,l the steering column `is fbored atl one iside to receive lthe project-ioni@andthe; column,

and contained sleevesB-C arebored at the opposite; side to receive; and; permit moves ment of the infner end oJthe boltf125 thel steering rod .or shaftv being yformed,W-itha soeket toreoeivejsueh innen endof thenbolt i* When thelatter :is proj ecteflz, so :that the fsteerr, ingy gear may beplor-zkedy with thev steering wheelszin anyfprescribed position,l 'Ehe 'prof jeetion 10,-in the eventof- Wear oiitheflock.-

ingsendv ofthe bolt, will` prevent thefflookj fromshifting outiof proper positionfo'r en-4 gagement of' the lockingI ybolt v.With-its are# ceiving socketl inthe steering rody on shaft.

From the `foregoing the'applioation; of .the

invention .for useuponl the steeringfgeari of y an: automobile .Will/befapparent.

The bolt 12.isfmovablein-andthrough'an i opening 13 extending diametrioallyy through the casing in axial alinementf WiththeaprfofjectionflO,V They bolt iS.; 0fgreater 'length 110 than the opening 13 so as tol normally. `pres `ent a5 locking end 1.4' and.I a. manipulating and I aan.

The projection :i is` 85,

15. The end' `14 normally extends into the shackle opening 11 a suicient distance to terminate Hush with the inner surface of the inner sleeve enclosed by the 'column when :the bolt is in retracted position, allowing proper clearance for the normal rotation of thesteering shaft, and the openings in they sleeves (gas and spark) being sufciently large to permit of their free movements without interference from the bolt,while the outerend of the bolt is always exposedto i anextent to permit itto befmanually manipulated for projection.` i

AAt one side of the bolt passage 13 the casing 2 isprovided with a circular chamber 16which opens at its outer end through one of the lateral faces of the casing and at such end communicates with an inset groove i or rabbet 17. At the opposite side of the boltpassage 1 3r from the chamber 16 the `casing 2 is formed with a second .chamber This chamber 18 extends radially 1n- .ward from the shackle opening 11 and comfmunicates with the passage 13 through a slot 19 and saidl chamber has a bottom wall 20 at its base or outer end and is closed by a plug 21 at its inner end. A pin 22 is fixed to and projects from the bolt through vthe slot 19 into the chamber 18, in which chamber is enclosed .a y spring 23 acting on said pin to hold the bolt normally retracted. A slot v24 connectsy the passage 13 with the chamber 16, through which the adjacent side of the bolt is exposed to thev chamber 16, and said side of the bolt is provided with a locking notch 25 and is flattened, as

countersunk in the recess 17.

`disposed at a indicated at 26, for engagement at its latferal margins with the said'walls of said slot 24' to hold the bolt' from rotation and to also ensure the registration of the notch with and its exposure through said slot. Vhen 'the bolt is retracted the notch 25 is per end of said slot. A flange 32 extending part way around the platefis provided to frictionally engage the wall of chamber 16 and hold said plate in position. Fitted. for rotation in the cylinder 27 is a tumbler 33,

l said tumbler having a keyway 34 of a deteri eso mined form. Atits inner endv this tumbler carries a cam disk 35 adapted formovement between the plate 30, and a shoulder 36 on a latch 37 having a shank portion 38 slidable in a socket in thel cylinder and adapted to be projected by a spring -39 surrounding saidshankbetween the cylinder point in proximity to the outer and shoulder` 36. The disk is so shaped that on a half revolution of the cylinder` in one direction the latch will be permitted to move inward to locking position under pressure of spring 38, while on a reverse half'revolution of the cylinder the latch will be pressed backward to retracted position against the resistance of the spring, which is thereby tensioned.y On itsmovement to locking position the ylatch head passes through the opening 31 in the guide Iplate 30, which opening is so arranged as to lie in register with the notch 25 in the bolt 12 when the latter is moved inwardly to locking position under pressure on its end l5' against the resistance of its retracting spring 23. On ythe forward movement of the Vbolt to locking position, the bolt head snaps into engagement with the notch 25. When, however, the bolt is retracted by the cam the bolt will be released andV will be retracted by its spring 23. It will thus be seen that when the latch is projected by the cam its head will extend into the slot 19 and ride in Contact with the surface of the bolt and be held by the latter in partly retracted position against the resistance of spring 38 during the forward movement of the bolt and. until notchr 25 comes into alinement withthe latch head, whereupon the pressure of spring 38 will seat the bolt head in the notch 25. The bolt will then be held locked in projected position with its end 14 engaging the keeper recess in the steering shaft or other part to be held locked. The

bolt will be so held until a proper key is inserted in the key guideway and the tumbler turnedy back to release position, in which action the cam positively retracts the latch, whereupon spring 23 positively 'retracts the bolt. Itis evident, of course, that, with thc latch in locking position, movement of the bolt to locking and locked position is accomplished by pressure ofthe thumb or finger of the operator on the bolt end 15.

A lock of the type described is simple of construction, inexpensive of production, so that it may be manufactured and sold at a comparatively low cost, and give a high degree of safety lin use. While the construction disclosed'is preferred, it will, of course, be understood vthat various changes in theform, proportionsl and vdetails of construction, yfalling within the scopev of the appended claims, may be made without departing fromY the spirit or sacrificing any of the advantages of the invention.V

Having thus fully described my invention, I claim 1. In a lock, aV lock body having a shackle portion land a casing portion, the latter be ing provided with `a bolt-passage and a chamber arranged at right angles to each other and separated by a wall having a slot alfordingcommunication between said pasing position.

2. In a lock, a lock body having a shackle portion and a casing portion, the latter be-y ing provided with a bolt-passage and chambers at opposite sides thereof, one of said chambers being parallel with and the other arranged at right angles to the boltpassage, each chamber being separated from the passage by a partition Wall having a slot affording communication between it and said bolt-passage, a spring-retracted, manuallyprojectible bolt removable in said bolt-paf sage and having a flattened side bearing against the partition Wall between said passage and the second-named chamber, said side of the bolt being provided With a notch exposed through the slot in said partition wall to said second-named chamber, a cylinder mounted in the second-named chamber, a spring-pressed latch carried by said cylinder and movable through the slot in the partition Wall against Which the flattened side of the bolt bears to engage said bolt notch when the bolt and latch are in coactive relationship for a bolt locking action,v

key-controlled means carried by the cylinder for shifting the latch into and out of bolt engaging position, a projection carried by the bolt and extending into the chamber parallel with the bolt-passage through the slot in the intervening partition Wall, and a spring in said parallel chamber acting on said projection to retract the bolt.

3. In 'a` lock, a lock body having a shackle portion and a casing portion, the latter being provided with a bolt-passage and a chamber arranged Vat right angles thereto and separated therefrom by a Wall having a slot affording communication between said nas'- sage and chamber, a spring-retracted, manually-projectible bolt movable in said passage and having a flattened side bearing against the Wall and provided With a notch exposed at said slot therein, a cylinderv mounted in the chamber, a latch having a shank at one end slidably mounted in the cylinder and having a latch member at its opposite end movable through said slot to engage said notch, said latch being provided With a shoulder between said shank and latch member,a spring about thel latch shank acting on the shoulder to project the